**7. Conclusions**

The present numerical investigation aimed to reveal the Sutterby nanofluid fluid flow and heat transfer over a permeable stretching/shrinking surface together with the effects of thermal radiation and magnetohydrodynamics (MHD). The appropriate form of the similarity transformations for the present flow problem was derived using scaling group analysis. The newly derived similarity variables then transformed the mathematical model into a more straightforward form to solve the boundary value problem utilizing the solver function bvp4c in the MATLAB software. The significant results are summarized as follows:


**Author Contributions:** Conceptualization, M.M.F., K.N., M.F.M.B., I.H. and R.R.; methodology, M.M.F., K.N. and M.F.M.B.; software, M.M.F.; validation, M.M.F., K.N., M.F.M.B., I.H. and R.R.; formal analysis, M.M.F., K.N. and M.F.M.B.; investigation, M.M.F., K.N. and M.F.M.B.; writing—original draft preparation, M.M.F., K.N., M.F.M.B., I.H. and R.R.; writing—review and editing, M.M.F., K.N., M.F.M.B., I.H. and R.R.; funding acquisition, I.H. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by the Ministry of Education Malaysia (Project Code: FRGS/1/2019/STG06/ UKM/01/2) and the APC was funded by the Ministry of Education Malaysia (Project Code: FRGS/1/2019/STG06/ UKM/01/2). The author from Universiti Teknologi Malaysia (UTM) would like to acknowledge the Ministry of Education (MOE) and Research Management Centre-UTM for supported this work under the research gran<sup>t</sup> (vote number 17J52).

**Conflicts of Interest:** The authors declare no conflict of interest.
